refinery workwear · a chemically protective anti-static boot with an integral steel toe cap and...

Refinery WorkwearHF Alkylation

REFINERY WORKWEARFOR HF ALKYLATION

CONTENTS

Workwear ................................................................ 4-8

Jackets and Bib Pants ............................................4

One Piece suit .........................................................4

Air Supplied Hood ..................................................5

Air Supplied Half Suit ..............................................5

Air Supplied Tank Suit .............................................6

Half Suit (Facemeask) .............................................6

Gas-Tight Suit .........................................................7

Gloves .....................................................................8

Footwear ..............................................................8,9

Air Hose & Filter ......................................................9

HF Acid, an Explanation ............................................10

PPE Garment Selection .............................................10

Chemical Permeation ................................................11

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ABOUT RESPIREX

Respirex are a world leading supplier of personal protective solutions, specializing in the design and manufacture of high-performance chemical and respiratory protective clothing.

We are unique in offering a complete service that includes standard or tailored equipment solutions combined with unrivaled training, aftercare and support. Our in house testing laboratory is UKAS approved for chemical permeation testing to EN 374-3, EN ISO 6529 and ASTM 739, and continually tests the fabrics and seams used in our clothing to ensure our equipment’s performance.

Founded in 1957, Respirex has manufactured protective clothing for the petrochemical industry since the early 1980’s, and boasts an enviable list of blue-chip international customers that have come to depend on our products and service.

Type 4 Jacket Type 4 Siren Suit

Type 4 Bib Pants

Jacket in orange neoprene with mandarin style collar and Nylon zip, fitted from throat center to waist with plain inner zip flap and single outer zip flap with Velcro closure. Soft cuffs and cones with optional neoprene gloves. Other cuff and fabric options available.

For full protection, the jacket and pants should be worn with an appropriate helmet and neck protection, gloves and safety boots (see pages 8 and 9).

Sizes: S, M, L, X-L, XX-L and XXX-LProduct Code: DAS1020



Bib-Pants in orange Neoprene with red webbing braces and buckles at the front. Shown with plain hem legs with Velcro® hook and loop securing strips. Other ankle and fabric options available.

Note: Jacket and pants individually meet Type PB [3] and PB [4], but meet Type 4 when worn in combination

One-piece siren suit in yellow neoprene with mandarin collar, Nylon zip fitted from throat center to right hand thigh, plain inner zip flap and single outer zip flap with Velcro® hook and loop closure.

Respirex Soft cuffs and cones with reinforced cuffs and optional Neoprene gloves. Elasticated inner and outer legs with elasticated stirrups. Other cuff, ankle, hood and fabric options available.

4 www.respirexinternational.com

One-Piece Suit-To EN 14605 (Type 4) for chemical protective clothing

Two-Piece Suit (Jacket and Bib Pants)-To EN 14605 (Type PB 3 & 4 ) for chemical protective clothing

Sizes: S, M, L, X-L, XX-L and XXX-LProduct Code: ASIMB023

Product Code: ASIMH058/17

Air supplied hood in yellow neoprene material, with rigid visor and outer disposable visor.

Features:• Under-collar neck seal• Three point hanging attachments• Adjustable waist belt with back pad• Simplair air system mounted in cape• Air distribution block with twin breathing hoses to either side of

the hood. • The air pigtail PVC yellow 3/8” bore hose terminates in a ¼”

male quick disconnect fitting (NIOSH Approved: Foster, Hanson, Schrader, Snap-Tite)

Air supplied half suit in orange neoprene material, with rigid visor and outer disposable visor.

Features:• Three point hanging attachments• Air distribution block with twin breathing hoses provides air to

both sides of the hood• An internal, adjustable waist belt supports the air system and is fitted

with a foam back pad for increased comfort• Respirex locking cuff system with reinforced cuffs• Heavy duty open ended gas tight zip fitted from neck to waist• Twin exhalation valves• Can be used at between 12psi and 39psi (dependent on air

supply hose length)• A waist belt is fitted externally to provide a seal to the bottom of

the blouse• The air pigtail PVC yellow 3/8” bore hose terminates in a ¼”

male quick disconnect fitting (NIOSH Approved: Foster, Hanson, Schrader, Snap-Tite)

SIMPLAIR Hood Air Supplied Blouse

5Respirex International Limited

Notes:1. Requires a minimum air-flow of 7.8 cfm (220 l/m) and a maximum

of 9.9 cfm (280 l/m)2. Air quality must be in accordance with EN12021 Annex A

Notes: 1. Requires a minimum air flow of 6 cfm (170 l/m) and a maximum of

9.9 cfm (280 l/m) to the blouse2. Air quality must be in accordance with EN12021 Annex A

Air Supplied Hood (NIOSH Approved)-To EN 270 for respiratory protective devices and EN 467 for protective clothing when worn with one or two-peice suits.

Air Supplied Half Suit (NIOSH Approved)-Type C Continuous Flow Class NIOSH Approval No: TC-19C-378

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SIMPLAIR Tank SuitHalf ‘’C’’ Blouse

Tank Suit in yellow Neoprene material with rigid visor and outer disposable visor.

Features:• Three point hanging attachments • 48” (122cm) Heavy duty gas tight zip positioned down the right

hand side of the suit closing at the top• Respirex locking cuff system with reinforced cuffs• Detachable Kemblok™ chemical resistant safety boots or

elasticated inner and outer legs with elasticated stirrups• Adjustable waist belt with back pad • Simplair air system mounted in suit incorporating low flow

warning whistle• Air distribution block with twin breathing hoses to either side of

the hood and cooling hoses to wearer’s arms and legs. • The air pigtail PVC yellow 3/8” bore hose terminates in a ¼”

quick disconnect fitting • Options: Fabric, ankle arrangement & lifting eye

Air supplied half suit in orange neoprene material, with rigid visor and outer disposable visor. The back of the blouse incorporates a ‘hump’ providing space for an egress cylinder worn at the base of the back.

Features:• Three point hanging attachments • Cooling halo attached to crown of hood• Accommodates customers own facemask, egress bottle and

breathing air supply• Respirex locking cuff system with reinforced cuffs• Heavy duty open ended gas tight zip fitted from neck to waist• A waist belt is fitted externally to provide a seal to the bottom of

the blouse• The cooling air pigtail terminates in a NPT

Notes:1. Requires a minimum air flow of 12.7 cfm (360 l/m) and a maximum

of 15.5 cfm (440l/m) 2. Air quality must be in accordance with EN12021 Annex A

Air Supplied Tank Suit -To EN 943 Part 1, Type 2 for non-gas tight protective clothing

Half Suit-To be worn with facemask and egress bottle

Sizes: S, M, L, X-L, XX-L and XXX-LProduct Code: DSIMB012

Sizes: S, M, L, X-L, XX-L and XXX-LProduct Code: Available on request

www.respirexinternational.com

GTB Reusable Gas-Tight Suit

Manufactured from a polyester fabric coated on one side with Orange fireproof DuPont™ Viton® with a black fireproof Butyl undercoat and one side with Black fireproof Viton® with a black fireproof Butyl undercoat. It incorporates the latest technology in both fabric and suit design and is compatible with any manufacturer’s breathing apparatus.

Respirex GTB reusable gas-tight suits in Viton®/Butyl/Viton® (VBV) material are protective against liquid and gaseous chemicals, including liquid aerosols and solid particles - For further information visit www.respirex.com.

• Strong and flexible five layer high performance chemical barrier fabric• Wide, rigid, chemically resistant and mechanically strong visor

providing clear undistorted vision• Sewn and double taped seams for maximum performance.• Available in a wide range of sizes• Adjustable internal support belt and ‘Bat-Wing’ sleeves for

optimal wearer comfort• Respirex locking cuff with dual neoprene and Kemblok™ gloves• Detachable chemically resistant safety boots with steel toecap

and midsole• Optional ventilation to arms and legs (GTVB model)• Supplied pre-tested in a robust carrying case.• Optional fall arrest system• EN943 Part 2 approved for emergency team use

Optional air line pass-through that enables supplementary air to be supplied to the wearer’s breathing apparatus.

For the pass-through we would need to know the couplings and configuration on the manifold to enable us to attach the corresponding fittings.

Optional labeling in visor and on rear breathing apparatus pouch.


Gas-Tight SuitFully encapsulating Type 1A gas-tight suit covering both the wear-er and the breathing apparatus conforming to EN943-2(ET)

Sizes: S, M, L, X-L, XX-L and XXX-LProduct Code: Available on request

DuPont™ and Viton® are trademarks or registered trademarks of E.I. du Pont de Nemours and Company.

Neck Cloth

Neck Wrap

Respirex Cuff and Glove Options

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A chemically protective, anti-static overboot with an oil resistant vulcanized rubber sole. Tested against the 15 chemicals in detailed EN 943.• Kick off lug• Rear entry for ease of fitting• Fixing by means of a rubber strap attached at the back of the

boot hooked onto a molded button on the boot front Certified to: EN ISO 20347, PPE DIR 89/686/EECConforms to: NFPA 1991, ASTM F 2413, CSA Z195

A choice of cuff and glove options are available depending on the environmental requirement• Quick change soft cuff and cones, neoprene gloves • Respirex Locking Cuff (pictured), neoprene gloves• Respirex Locking Cuff (pictured), bonded dual neoprene and

Kemblok™ gloves

Chemically Protective Overboot

Face and Neck Protection-For use with Respirex Type 4 Jacket and Bib Trousers or Siren Suit

Chemically Protective Gloves & FootwearConforms to relevant European standards when worn with Respirex protective clothing

Orange neoprene neck flap with Velcro™ strips for attaching to helmet

Orange neoprene neck wrap with Velcro™ strips for attaching to helmet

Product Code: DAS1040C (Neck flap only)

Product Code: DAS1040W (Neck wrap only)

Sizes: Medium (US 7-9) Large (US 10-12) Extra Large (US 13-15)


Kemblok™ Chemically Protective Boot

Respirex PVC Reinforced Air Hose to EN 270

Respirex Quadruple Outlet Portable Filter Cabinet


A chemically protective anti-static boot with an integral steel toe cap and vulcanized rubber sole for superior slip resistance.

Boot Shaft• Green chemically resistant compound shaft• Conforms to EN 943-1 (Chemical protective clothing) and certified to

this standard as part of an appropriate Respirex gas tight suit• Meets the requirements of NFPA 1991 (Chemical vapor protection)• 200 Joule Epoxy coated Steel toe cap• Seamless construction • Kick off lug• Extra shin protection• Adjustable height• Ankle guard• Knitted nylon lining• Comfort insole (removable and machine washable)• CE marked on the shaft with date and year of manufacture

Boot Sole• Black vulcanized rubber sole for maximum grip - 30% better

than a conventional safety boot sole• Slip resistance performance twice that required by SATRA

TM144 standard• Two to three times the wear resistance of conventional soles• Stainless steel, penetration resistant mid-sole• Fuel and oil resistant• Greater cut resistance than conventional soles• Resistance to hot contact 60 seconds 300℃• Energy absorbing tunnel system

Notes:1. Boots are machine washable at up to 40℃2. FPA Heat resistant version to EN 943-2, EN345-2 and EN ISO 20345 (only available as part of a Respirex chemical protective suit).

Certified to: EN 13832 pt 3, EN ISO 20345 S5 HRO SRC CI FO E, PPE DIR 89/686/EEC

Green Heavy Duty reinforced PVC hose terminating at each end in a ¼” BSP male thread. Bore size 9.5mm (3/8”), outside diameter 0.8” (20mm) - thick wall.

Yellow reinforced PVC hose terminating at each end in a ¼” BSP male thread. Bore size 9.5mm (3/8”), outside diameter 0.6” (16mm). NIOSH Approved air fittings: (Foster, Hanson, Schrader, Snap-Tite).

Optional 360º swiveling anti-kink connector available.

A three stage filter set designed to ensure that the breathing air supply is clean and breathable to EN12021: 1999. Cabinet manufactured in durable, lightweight Polyethylene with an easily removable clear polycarbonate front panel with sealing gasket. The unit has an adjustable pressure regulator, pressure gauge and three air supply outlets.

The three-Stage filtration set comprises:a) Grade AO (First Stage) High Efficiency General Purpose

Protection. For the removal of particles down to 1 micronb) Grade AA (Second Stage) High Efficiency Oil Removal Filtration.

For the removal of particles down to 0.01 micronc) Grade ACS (Third Stage) Activated Carbon Filtration for the

removal of oil vapor and hydrocarbon odors AO and AA Filter housings have sight glasses allowing visual check of liquid collection and drain functions. They also have automatic drain valves as standard so collected condensate is removed.

Airline Supply Hose & Filter Cabinet(Connectors not included)

Chemically Protective Footwear- To EN 13832. Conforms to EN 943 and NFPA 1991

Sizes: US 4-16Product Codes: B00847 (US 4) to B00857 (US 14) B00998 (US 15), BB00999 (US16)

Yellow Reinforced PVC Hose (NIOSH Approved) Product Code: AG0316/25 (25 foot hose)

AG0316/50 (50 foot hose)

Green Heavy Duty Reinforced PVC HoseProduct Code: Available on request

HF ACIDAn Explanation Reusable vs. Disposable Garments

Respirex does not make disposable work wear, only limited life Gas-Tight suits for emergency teams where decontamination of a suit after use may not always be practicable. Our workwear is designed to be laundered and re-used, and will provide a lower lifetime cost of ownership than the equivalent number of disposable garments, but there are a number of other advantages:

Reusable Garments Disposable Garments

Reusable garments cost but offer a long shelf life

Lower purchase cost, but single use only

Can be repaired to further extend their shelf life

Single use, not suitable for repair

Stronger fabrics which are tear resistant and do not puncture easily

Weaker fabrics which tear and puncture more easily

Reinforced cuffs and elbows to prevent abrasion (optional on some items)

Single layer, thinner fabrics which abrade more easily

Rubber cuffs and locking cuff systems preventing any ingress up the sleeve

Lower specification elasticated or taped sleeves with greater risk of chemical ingress

Glove changing quick and fuss free

Glove changing more hazardous with elasticated sleeve and more complicated with taped option

Heavy duty nylon zip Lightweight nylon zip

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The first thing to note is that the term “HF” is used, and misused, to mean a number of different things. The nomenclature in this area is not standard and there is often some overlap in meanings. If you are not certain then there is no shame in clarifying or confirming the meaning of a term.

HF itself stands for hydrogen fluoride. This is a molecule consisting of one atom of hydrogen attached to one atom of fluorine. This chemical boils at around 19 Celsius, just below room temperature; it is therefore normally a gas. However, if you cool HF slightly, or keep it under a slight pressure, it is a liquid. If you then spill the liquid in an environment at room temperature it will boil, but it takes quite a while for it all to boil away. Both the liquid and gaseous forms are pure hydrogen fluoride with nothing added - no water solutions - so they are both termed “anhydrous” (meaning “without water”). So far we have:

• Anhydrous hydrogen fluoride (or HF) gas • Anhydrous hydrogen fluoride liquid

If you ask about the concentration of the anhydrous liquid you will get a confusing answer. It is a pure liquid (like water or methanol) and so it is “neat” or 100%. Unfortunately you’ll come across “100%” in another context in a minute. One last thing, pure hydrogen fluoride itself (either gas or liquid) is not at all acidic - strange but true.

Anhydrous hydrogen fluoride (we could be talking about liquid or gas here) is very soluble in water. You can dissolve 48g of pure hydrogen fluoride in 100ml water (not a perfectly true statement, but you don’t need to worry about that) The concentration of this solution is therefore 48%. This is the maximum concentration for pure hydrogen fluoride in water. This solution is moderately acidic and fumes a bit. It goes under a variety of names:

• Hydrofluoric acid • HF acid • 48% HF • 50% HF (it gets rounded-up in some places)

If you adulterate your 48% solution with things like potassium fluoride you find that you then actually get more hydrogen fluoride to dissolve. In the end you’ll find that you can get 72g of hydrogen fluoride in 100ml impure water. This solution is also moderately acidic and fumes quite a lot. It is known variously as:

• Hydrofluoric acid • HF acid • 72% HF • 100% HF

- This is where some confusion sets in. Some people call this solution “100%” because it is the maximum concentration possible. Very misleading, but then so are a lot of industrial terms. If in doubt, ask.

So to summarize, we have HF in the following forms:

• Pure gas • Pure liquid • Pure acidic solution • Stronger impure acidic solution

Soft cuff and cone

This sleeve cuff features a rigid retaining ring with an internal O-ring seal and a soft rubber external seal. The glove is stretched over a cone and is then pushed firmly into the cuff from inside the sleeve, providing a liquid-tight seal.

Zip and Zip-flap

Respirex Suits and jackets include a durable heavy duty zip with a wide external flap secured with Velcro that covers the teeth of the zip. A second wide internal flap provides and additional layer of protection. This combination provides a liquid-tight seal without the inconvenience of having to tape the external flap shut.


Material Selection Training, Certification and Maintenance

The choice of material will determine both the likely life-span of the garment, its operator comfort and the degree of chemical protection it can provide. For HF refinery applications Respirex recommend neoprene for workwear applications, as it offers greater chemical protection than PVC and is more flexible, making it more comfortable for the user. It is important to remember that these garments are the routine uniform for the site - they have got to be more than just “wearable”.

For workwear and air-supplied suits neoprene has sufficient permeation resistance to anhydrous HF to get you out of danger. For workwear there is no benefit in choosing fabrics like Viton®/Butyl/Viton®; the level of protection offered by the garment design doesn’t warrant such high permeation resistance. If the environment is sufficiently hazardous that you need hours of protection against HF gas you will certainly need gas-tight seams, gas-tight foot-wear options and gas-tight seals everywhere.

However, for the gas-tight suit scenario, where you have accepted that the environment warrants the use of a gas tight suit, you do need the superior permeation resistance of either VBV or a similar fabric. The good news is that the design of this suit does warrant this extra resistance.

Chemical Permeation

Chemical ingress through protective workwear can occur through permeation or penetration. Permeation is a complex diffusion process causing degradation of the fabric. It involves molecular diffusion of the chemical through the fabric and does not involve holes in the fabric. Diffusion may also cause degradation of the fabric.

Penetration is chemical ingress through holes in the fabric. Ingress on a non-molecular level through holes in the fabric; stitch-holes; pores, seams; cuffs; zips; leg endings; collar etc.

Respirex provide permeation data for the fabrics used in our suits and continually test both fabrics and seams during production. The permeation test carried out by our laboratory is under total immersion conditions - continuous contact with the chemical. Although this is the recognized standard for testing, it is not always reflective of a typical spillage on site. The test models continuous-wear conditions as opposed to emergency protection.

Permeation data is available on request - please contact our US distributor on 281-350-5001, or by email at [email protected]


However good the protective equipment chosen for your site, if is not worn correctly or properly maintained, there will be a risk to the user. To ensure that employers can be confident that they have met their health and safety commitments, Respirex offer a range of training courses of the correct use and maintenance of protective garments, and issue certificates to those attending.

We are also able to advise on risk assessment, and best practice for keeping for testing and maintenance records. A repair service is also available, as are a range of spares and consumables.

Combining correct usage and inspection with scheduled servicing and repairs ensures user safety and will greatly extend the service life of your equipment.

HFAW/US/R3

Respirex International LimitedUnit F, Kingsfield Business CentrePhilanthropic RoadRedhill, RH1 4DPUnited Kingdom

': +44 (0)1737 77 86 00 : [email protected] : www.respirexinternational.com

© Respirex International Limited, 2019

Distributed in the U.S.A. and Canada by:Respirex North America20527 Marilyn Ln.Spring, TX 77388U.S.A.

': 281-350-50017: 281-350-5191 : [email protected]: www.respirexna.com

refinery workwear · a chemically protective anti-static boot with an integral steel toe cap and...

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